Genetic Variant SCN10A:p.Pro939Arg (chr3-38726877-G-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_006514.4(SCN10A):c.2816C>G(p.Pro939Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P939L) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

SCN10A
NM_006514.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.464

Publications

0 publications found

Variant links:

Genes affected

SCN10A (HGNC:10582): (sodium voltage-gated channel alpha subunit 10) The protein encoded by this gene is a tetrodotoxin-resistant voltage-gated sodium channel alpha subunit. The properties of the channel formed by the encoded transmembrane protein can be altered by interaction with different beta subunits. This protein may be involved in the onset of pain associated with peripheral neuropathy. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2014]

SCN10A Gene-Disease associations (from GenCC):

sodium channelopathy-related small fiber neuropathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
episodic pain syndrome, familial, 2
Inheritance: AD Classification: LIMITED, NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae), Illumina, Ambry Genetics
Brugada syndrome
Inheritance: Unknown Classification: LIMITED Submitted by: Genomics England PanelApp
Brugada syndrome 1
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

SCN10A links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.067724824).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SCN10A	NM_006514.4 link	c.2816C>G	p.Pro939Arg	missense_variant	Exon 17 of 28	ENST00000449082.3	NP_006505.4	Q9Y5Y9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SCN10A	ENST00000449082.3 link	c.2816C>G	p.Pro939Arg	missense_variant	Exon 17 of 28	1	NM_006514.4	ENSP00000390600.2	Q9Y5Y9
SCN10A	ENST00000643924.1 link	c.2816C>G	p.Pro939Arg	missense_variant	Exon 16 of 27			ENSP00000495595.1	A0A2R8Y6J6
SCN10A	ENST00000655275.1 link	c.2843C>G	p.Pro948Arg	missense_variant	Exon 17 of 28			ENSP00000499510.1	A0A590UJM0

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461890

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727248

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000360

AC:

AN:

1112008

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.068

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.46

CADD

Benign

8.3

(source)

DANN

Benign

0.19

DEOGEN2

Benign

0.040

T;.;T;.

Eigen

Benign

-1.1

Eigen_PC

Benign

-0.97

FATHMM_MKL

Benign

0.15

LIST_S2

Benign

0.28

.;T;T;T

M_CAP

Benign

0.027

MetaRNN

Benign

0.068

T;T;T;T

MetaSVM

Benign

-0.80

MutationAssessor

Benign

-0.54

N;.;N;.

PhyloP100

0.46

PrimateAI

Benign

0.26

PROVEAN

Benign

2.2

N;.;.;.

REVEL

Benign

0.14

Sift

Benign

0.42

T;.;.;.

Sift4G

Benign

0.46

T;.;.;.

Polyphen

0.0050

B;.;B;.

Vest4

0.072

MutPred

0.43

Loss of ubiquitination at K942 (P = 0.0386);Loss of ubiquitination at K942 (P = 0.0386);Loss of ubiquitination at K942 (P = 0.0386);Loss of ubiquitination at K942 (P = 0.0386);

MVP

0.51

MPC

0.064

ClinPred

0.13

GERP RS

3.4

Varity_R

0.016

gMVP

0.093

Mutation Taster

=94/6

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over